Improvement in cutters for plows



- AT ALDRICH. Cutter for Flows.

10.212,419. Patented Feb.1s,18791.

UNITED STATES PATENT GEEIoE.4

ASAHEL ALDRIOH, OF MARION, IOWA.

IMPROVEMENT IN CUTTERS FOR PLOWS.

Specification forming part of Letters Patent No. 212,419, dated February 1B, 1879; application filed December 31, 1878.

To all whom fit may concern:

Be it known that I, AsAHEL ALDRIOH, of Marion, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Cutters for Plows; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

The nature of my invention consists, essentially, in the peculiar construction of the box and yoke through which the upper end of the standard passes, whereby the colter accommodates itself to the movements of the plow; also, in the combination of certain other features, the peculiarities of which will be hereinafter fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe vits construction and operation, referring to the annexed drawing, in which the figure is a perspective view of my cutter.

A represents the plow-colter, which is made in the form of a triangle, having equal sides, as shown, and forming three sharp or cutting edges, so that when one edge is worn another edge can be turned in proper direction for work. In the center of the colter is a hole, a, and equidistant from the same, in a straight line with each angle or corner of the colter, is a hole, a', as shown. B is the sheath or standard of the colter, made in L shape, and to the lower and rear end of which the colter Ais secured by means of two bolts or screws, b b', which pass respectively through the center hole, a, and one of the holes a', and there screw into a bar, O, (shown in dotted 1ines,) placed against the other side of the eolter, thus fastening the colter firmly to the standard.

It is necessary sometimes to change the angle at which the operating edge of the colter is to work; and to this end I provide the extreme rear end of the standard B with a series of holes, x, arranged on the arc of a circle, of which the hole for the bolt b is the center. By this means the bolt b can be changed, so as throw the front edge of the colter to the angle best adapted for work.

The upper end of the standard B is formed into a round shank, D.

ing said set-screw the colter may be adjusted up and down, as'required, and then fastenedv again by the set-screw.

On one end of the yoke I is made a lug or projection, It, which enters a recess, t, in the corresponding end of the box G. This recess is, however, larger than the lug h, which allows the colter a certain limited movement to either side, and admits of it accommodating itself to the movement of the plow.

This plow-colter is arranged under the beam in a slantin g position, so th at it draws after the plow, and will cut sod, straw, or corn-stalks, enabling the plow to turn them under and make smooth work, and not raise the plow from the ground. K

It is evident that t-he colterAmay be made with four sides equally as well as with three.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a plow-colter attachment, the box G,

with recess z', in combination with yoke I, with lug It, for the purpose of allowing the colter to accommodate its direction to the movements of the plow, substantially as set forth.

2. The combination of the standard B, with shank D, the box G, with recess z', yoke I, with lug h, and the set-screw d, substantially as and for the purposesherein set forth.

3. The standard B, having its upper end formed with a round shank, D, and its lower portion bent at right angles with the end, pro vided with an enlarged or expanded head, the same being provided with a series of holes arranged on the arc of a circle, in combination with the angular cutter A, box G, yoke I, and beam F, all as and for the purpose set forth.

In testimony that I claim the foregoing afs my own I a'tiix my signature in presence of two witnesses.

ASAHEL ALDRIOH. Witnesses:

J WV. LAGRANGE, R. M. BERRYHILL. 

